Puts Si72xx into Sleep-Timer-Enable mode. Si72xx periodically wakes-up, samples the magnetic field, updates the output, and goes back to sleep-timer-enabled mode. Command can only be issued if Si72xx is idle mode.

Puts Si72xx into Sleep-Timer-Enable mode. Si72xx periodically wakes-up, samples the magnetic field, updates the output, and goes back to sleep-timer-enabled mode. Command can only be issued if Si72xx is idle mode.